Lathe-oiling mechanism



Nov. 18, 1930. w. F. GROENE 1,781,755

LATHE OILING MECHANISM Filed June 4, 1928 I 3 Sheets-Sheet 1 INVENTOR.

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Nov. 18, 1930. w. F. GROENE LATHE OILING MECHANISM Filed June 4, 1928 3 Sheets-Sheet 2 INVENTOR. {um 3 A TTORNE Y.

Nov. 18, 1930. w. F. GROENE LATHE OILING MECHANISM Filed June 4, 1928 5 Sh'eets-Sheet INVENTOR. m gt l'f qvk A TTORNE Y.

: in the ways for the cross slide.

Patented Nov. 18,1930

UNITED STATES PATENT OFFICE WILLIAM F. GROENE, OF CINCINNATI, OHIO, ASSIGNOR TO THE R. K. LE'IBLOND IA- CHINE TOOL COMPANY, OF CINCINNATI, OHIO, A. CORPORATION OF DELAWARE LATHE-OILING mncnnmsm- 1 a,

Application filed June 4, 1928. 'Serial No. 282,672.

- My invention relates to lathe oiling mecha nismswhereby a simple arangement provides for oil at all moving parts of the apron, slide and cross slide, with a reservoir for settling and a flow of oil over the driving gearing froma single source of pressure located in a sump.

It is my object to provide for an oil reser voir in the slide, which receivesoil through suitable channels from a pump located at the lower edge of the apron, from which reservoir the oil travels along the feed screw of the cross slide, so as to lubricate the ways for the slide, and thence s ills down over the enclosed drive gear assem ly in the apron to the sump. From the sump the oil is pumped to delivery channels in the apron, whence it is piped by means of tubes or passageways to the various shaft bearings, and to grooves Finally it drips from the cross slide ways grooves into the reservoir, thus completing a cycle, with the reservoir serving as a collecting basin, and in which a level of oil is maintained at S a proper height to spill back again as above noted, by maintaining a proper quantity in the system.

Among other features I provide for oiling the ways for the slide by capillary wood blocks exposed to the flow about the feed screw ofthe cross slide, and I maintain the gearing in a dripping flow of oil at all times.

I accomplish my objects by that certain construction and arrangement of parts to be hereinafter more specifically pointed out and claimed. a,

In the drawings:

Figure 1 is a section taken on the line 11 of Figure 2 with the cross slide removed.

Figure 2 is a detail front elevation of the apron, slide and cross slide of a lathe.

Figure 3 is a top plan view of the apron by itself.

Figure 4 is a detail sec'tion takenon the line 4-4 of Figure 3.

Figure 5 is a top plan view of the slide with the cross slide and the feed screw therefor removed.

Referring to the drawings, it will be noted that I have indicated at the bed ofthe lathe at 1, having ways 2, and 3, for supporting the.

slide 4. The slide has a pair of channels 5, 5, located along the ways 6, 6, for the cross slide.

These channels have tubular passages extending to the ways .as indicated at 7, and

also have overflow notches 8 intheir sides;

which permit oil to flow by gravity into a reservoir 9 formed in the slide.

This reservoir has a. bottom plate 10, which is removable for cleaning, and ,its central portion is deeper than the rest.

The oil stands inthis reservoir at a levelindicated by the line A, and wood blocks 11, are' located in the slide, so as to come into contact with the oil in the reservoir, and by capillary action provi e for a film of oil on the ways fo the silde.

The oil Ws along from the level A, through the hole 14 in the slide that accommodates the feed screw 12 for the cross slide and the cross slide 13, as actuated by the feed screw, is so located as to close the tops of the channels 5, 5, in the slide.

The apron cavity lies beneath the portion of the slide'where the hole 14 terminates, so that oil flowing along the feed screw drips down over the gears in the apron.

Located in theapron 15, is a pumpcasing 16, having a plunger 17 therein, that is moved up and down by means of a cam or eccentric 18. Any suitable type of pump would serve my purpose.

A removable cap 19, located over a hole in the bottom of the apron serves as a sump for the pump, and the oil is ejected by the pump through a pipe 20.

The'pipe 20 extends to a passageway 21 in the apron, which leads to a long channel 22 in the top of the apron.

The channel 22, by means of passageways extending therefrom as indicated at 23, provides lubricant to the shaft bearings of the drive, and also supplies oil to a small channel 'at one end of the apron as indicated at 24, by means of a channel 25 in the top of the apron that communicates with both the channel 22 and said channel 24. I

The channel 24 by means of passageways 26, lubricates the several shaft bearin at the outside face of the apron. The drip of oil onto the gear drive system maintains the shafts for said gears with proper lubricant at the intermediate portion of the apron.

The channels in the top of the apron are maintained closed at the top by means of the slide located thereon, and two passages 27 in the slide conduct lubricant from the main channel 22 in the apron to the two channels located in the top of the slide along side of the reservoir.

As so constructed, it will be noted that oil under pressure is delivered to the several shaft bearings, is delivered by gravity or capillary action to the several ways, and drips over the gear assembly in the apron, all from a single pump and by means of a system which includes a collecting reservoir near the top of the system, wherein chips or solid matter will be eliminated by gravity and intermittent cleaning when required.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. An oiling system for lathes, comprising a pump for oil located in the apron, means for delivering oil therefrom to the cross slide ways, and to a reservoir located in the slide, and for drainingback from the reservoir by I gravity flow over the gear assembly in the gravity to the interior of the apron above the gear assembly therein.

3. An oiling system for lathes comprising an oil pump in the apron, channels in the slide adjacent the cross slide ways to which oil is delivered by the pump, passages therefrom to the cross slideways, passages there from delivering oil to a reservoir located in.

the slide, and passages from the reservoir to the top of the apron for delivering oil by gravity from the reservoir to the interior of the apron.

4. An oiling system for lathescomprising an 011 pump in the apron, channels in the slide adjacent the cross slide ways to which oil is delivered by the pump, passages therefrom to the cross slideways, passages therefrom delivering oil to a reservoir located in the slide, and assages from the reservoir to the top of the apron for delivering oil by gravity from the reservoir to the interior of the apron and capillary blocks receiving lubricant from the reservoir and engaging the ways for the slide.

5. An oiling system for lathes comprising an oil pump in the apron, channels in the slide adjacent the cross slide ways to which oil is delivered by the pump, passages therefrom to the cross slideways, passages therefrom delivering oil to a reservoir located in the slide, and passages from the reservoir to the top of the apron for delivering oil by gravity from the reservoir to the interior of the apron and passages communicating with \VILLIAM F. GROENE. 

